It is simply qu"à 350fps, Ca gives a distance of minimum engagement of 10 feet to have one impacts of 1 joule. 350fps is the limit interior. Outside, one allows 400fps for the guns automatic (AEG) and 450fps for the snipers. 1 Joule is regarded as being the acceptable force of impacts of a BB, any weight confused. The paintball grip more because the balls are larger, but the BB of airsoft break the skin more easily than the paintball because they are smaller and hard. The BBS have intendances to also arrive in gust, contrary to the paintball which is semi car. To draw with the gun has lead is not badly stupid. I already saw a teenager playing Ca with tits gun cheap, worse y it is made break a joint...